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<?php trait SmartObject { public function __call(string $name, array $args) { return 'smart ' . $name; } } class Component { use SmartObject; } class FormControl extends Component { public function __call(string $name, array $args): mixed { return 'control ' . $name; } } class CustomFormControl extends FormControl { use SmartObject; } var_dump((new FormControl)->foo()); var_dump((new CustomFormControl)->foo());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of SmartObject::__call(string $name, array $args) must be compatible with FormControl::__call(string $name, array $args): mixed in /in/35EZW on line 4
Process exited with code 255.

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